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Roffi Grandiosa Herman

Publications (6)

Transportation of Blackmoor (Carassius auratus) Goldfish Variety with Low-Temperature Treatment at Different Durations

Walim Lili, Roffi Grandiosa Herman, Raihan Achmad Yusuf & Iskandar . · Asian Journal of Fisheries and Aquatic Research · 2021

This research aims to analyze the induction time and recovery time of Blackmoor Goldfish (Carrasius auratus) with different low temperatures as a transportation method, to find out how to handle it with a proper temperature reduction in its transportation, and to find out the opt...

Open access Research Article 10.9734/ajfar/2021/v15i630356

Ovaprim Dosage Optimization for Spawning Induction of G6 Transgenic Mutiara Catfish

Ibnu Dwi Buwono, Indah Permata Juwita Putri, Roffi Grandiosa Herman & Yuniar Mulyani · Asian Journal of Biotechnology and Genetic Engineering · 2026

Background: Optimization of Ovaprim dosage is necessary to improve spawning success in sixth-generation (G6) transgenic Mutiara catfish carrying the Clarias gariepinus growth hormone (CgGH) gene, whose reproductive performance has not yet been comprehensively evaluated despite st...

Open access Research Article 10.9734/ajbge/2026/v9i2186

The Maturity of Female Gonads of G2 Transgenic Mutiara Catfish (Clarias sp.)

Ayuniar Puteri, Ibnu Dwi Buwono, Roffi Grandiosa Herman & . Iskandar · Asian Journal of Fisheries and Aquatic Research · 2021

The G2 trangsenic Mutiara catfish (Clarias sp.) (MTG) is a Mutiara catfish that is inserted with the CgGH gene (Clarias gariepinus Growth Hormone) through the transgenesis. The effect of transgenesis stimulates gonad growth of G2 transgenic Mutiara catfish (Clarias sp.) faster th...

Open access Research Article 10.9734/ajfar/2021/v12i330234

Effect of Spirulina Flour on Changes of Color Intensity in Angelfish (Pterophyllum scalare) Strain Three Color

Walim Lili, Achmad Rizal, Roffi Grandiosa Herman & Rachmat Mahadika Ramadhan · Asian Journal of Fisheries and Aquatic Research · 2021

Ornamental fish is a fishery commodity that has promising business opportunities. Ornamental fish will have a high selling value if they have bright and brilliant colors. The advantage of ornamental fish is in the intensity of the color on its body. This study aims to analyze the...

Open access Research Article 10.9734/ajfar/2021/v11i230201

Effect of Tryptophan Supplementation in Commercial Feed on the Growth Performance of Mutiara Catfish Juveniles (Clarias gariepinus)

Ibnu Dwi Buwono, Ismi Nabila Putri, Iskandar Iskandar & Roffi Grandiosa Herman · Asian Journal of Biotechnology and Genetic Engineering · 2026

Background: Fish feed requires essential amino acids for optimal protein synthesis, and tryptophan supplementation at appropriate levels can improve growth performance, feed efficiency, and stress tolerance in juvenile fish while excessive or deficient levels can impair growth an...

Open access Research Article 10.9734/ajbge/2026/v9i1184

The Effect of Giving Various Natural Sources of ß-Carotene to Increased Color Intensity on the Oranda Goldfish (Carassius auratus)

Muhamad Afif Adhwa Kautsar, Walim Lili, . Subiyanto & Roffi Grandiosa Herman · Asian Journal of Fisheries and Aquatic Research · 2022

This research aims to examine the effect of adding various sources of natural ß-Carotene obtained from sweet potato flour, carrot flour and pumpkin flour to the color brightness of Goldfish. The research was carried out from December 2021 to February 2022 at the Aquatic Animal Ph...

Open access Research Article 10.9734/ajfar/2022/v18i230437